The merit of this grand invention is generally attributed to the Marquis of Worcester; but if the first idea originated with him, the perfecL ing ... Boilers are usually of an oblong form, and are furnished with a part that takes 05, in order that a person may get in to clean them ... that the engine may not be stogped, when the other requires repair. , is an apparatus for regulating the fire, and giving action to a bell, anbsp;...
|Title||:||The Portable Encyclopædia; Or Dictionary of the Arts and Sciences, on the Basis of Dr. Gregory's, Etc|
|Author||:||James Mitchell, George GREGORY (D.D., Rector of West Ham, Essex.)|